Converting xstring to string and back?

[VitorSeifert]

Hello, everybody

I have a problem where I have an ID for an element that is made of 32 hexadecimal elements (hence a size 32 xstring). I need to use it in another system which requires a shorter parameter, but of type string. Therefore, I came to the conclusion that converting my xstring to a string I could turn it into a smaller element than making a simple "one-to-one" conversion (for example, converting 'AF543' where each element is a Hexadecimal to 'AF543' where each element is a character).

I looked into the forum and I found the following Function Modules: NLS_STRING_CONVERT_TO_SYS and NLS_STRING_CONVERT_FROM_SYS.

However, when I convert the xstring '00300571B3851DDD9DFFF7A753C08326' to a string, I get '#0#q³##Ý#ÿ÷§SÀ#&' as a result. I realized that the character # repeats itself several times, although there is no repetition of elements in the xstring. Obviously, when I converted this string back to xstring, I got a different result, because the # character was always interpreted as the same number.

Isn't this conversion supposed to be unique? How could I convert my xstring to a unique string and be able to make the conversion the other way around, getting my original xstring back?

Any support will be very appreciated. Thank you in advance.

[Former Member]

Victor,

Try these FM,

CRM_IC_XML_STRING2XSTRING : Converts string to xstring

CRM_IC_XML_XSTRING2STRING : Converts xstring to string

Regards

Indu.

[Former Member]

Hi,

Link:

http://www.sapfans.com/forums/viewtopic.php?p=403405&sid=e524cddae19e7ae48a12477e68c6032d

[VitorSeifert]

@ Indu: Thank you for the tip, but I couldn't find these Function Modules on my system.

@ Syed: The solution presented in this link has the same problem I had before: it repeats the # characters on the conversion, therefore the resulting string is not unique.

[Former Member]

Hi,

If possible show code.

Adil

[VitorSeifert]

This is the code which is not working:

data: lv_uuid1 type xstring,

test type xstring,

l_out type string,

l_out2 type xstring.

lv_uuid1 = '00300571B3851DDD9DFFF7A753C08326'.

CALL FUNCTION 'NLS_STRING_CONVERT_TO_SYS'

EXPORTING

LANG_USED = 'D'

SOURCE = lv_uuid1

IMPORTING

RESULT = l_out.

write: lv_uuid1, ' ', l_out.

CALL FUNCTION 'NLS_STRING_CONVERT_FROM_SYS'

EXPORTING

LANG_USED = 'D'

SOURCE = l_out

IMPORTING

RESULT = l_out2.

write: / lv_uuid1, ' ', l_out2.

Notice that the l_out2 result is not the same as lv_uuid1, what proves that the conversion is not unique.

Edited by: Vitor Eduardo Seifert Bazzo on Sep 4, 2008 2:42 PM

Edited by: Vitor Eduardo Seifert Bazzo on Sep 4, 2008 2:42 PM

[Former Member]

Victor,

Try this code...

REPORT yh_sample.
DATA: w_s TYPE string.
DATA: w_s1 TYPE xstring.
DATA: lr_conv_ci TYPE REF TO cl_rpe_convert .

CREATE OBJECT lr_conv_ci.

w_s1 = '42'.
CALL METHOD lr_conv_ci->xstring_to_string
  EXPORTING
    input  = w_s1
  IMPORTING
    output = w_s.
WRITE:/ w_s.

CALL METHOD lr_conv_ci->string_to_xstring
  EXPORTING
    input  = w_s
  IMPORTING
    output = w_s1.

WRITE w_s1.

Regards

Indu

[Former Member]

try this FM's

HR_KR_STRING_TO_XSTRING

Convert unicode string into xstring

HR_KR_XSTRING_TO_STRING

Convert encoded string to unicode string

[VitorSeifert]

@ Indu: Thank you for the code, but I am still not able to recover my original xstring. This time the resulting xstring is even larger than the one I had before.

@ Adil: Thank you for the tip, but I can't find these function modules in the system.

[Former Member]

Which system your using.

[VitorSeifert]

Thank you for all the support. I will stop looking into this issue for now.

Edited by: Vitor Eduardo Seifert Bazzo on Sep 4, 2008 4:09 PM

[robinthakral]

You can refer to below class-method set to convert instead of using unreleased FMs.

*&---------------------------------------------------------------------*
*&    " Convert XString to String
*&---------------------------------------------------------------------*
DATA: lv_string TYPE string,
      lv_xstring TYPE xstring.

DATA: lo_conv_in TYPE REF TO CL_ABAP_CONV_IN_CE.

lo_conv_in = CL_ABAP_CONV_IN_CE=>CREATE( input = lv_xstring ).
lo_conv_in->READ( IMPORTING data = lv_string ).

*&---------------------------------------------------------------------*
*&    " Convert String to XString
*&---------------------------------------------------------------------*
DATA: lo_conv TYPE REF TO cl_abap_conv_out_ce.

lo_conv = cl_abap_conv_out_ce=>create( encoding = '4110' ).
lo_conv->convert( EXPORTING data   = lv_string
                  IMPORTING buffer = lv_xstring ).

*&---------------------------------------------------------------------*
*&    " Convert XString to Binary
*&---------------------------------------------------------------------*
 data: lt_binary_tab     TYPE solix_tab. " table of solix

      CLEAR: lt_binary_tab.
      lt_binary_tab = cl_document_bcs=>xstring_to_solix(
                      ip_xstring = lv_xstring ).